Superheater.



no. 861,137. y PAT'ENTED JULY 23, 1907.

s.l MUNsoN.

SUPERHEATER. APPLIOA'UON FILED SEPT.27,1'906.

2 SHEETS-SHEET 1r /NVENTOH I7 TTORNE YS BATENTBD JULY 2s., 1907. I

S. MUNSON. v SUPERHEATER. APPLIoATIoN FILED 51112127.1906.

asuma-snm 2.

W/TNSSE 197. Y. f 75L-1 SUPERHEATER` all whom it Imuy concern:

` the United States, andares'ident of Fowler, in'the county-of Otero and State of Colorado, have invented a' new land Improved Superheater, of which the iol'- lloir/'ing is a full, clear, and exactdescription.

4embodying my invention, taken on theline 1.-'1 of My invention relatesto .superheaters designedto be .usedin connection vwith tubulai locomotive boilers, andhas for its object to provide a siperheater having an'anipleheating'surface and adapted to permit oi' the passage of a large volume of steam, and to be iirmly'secured in the smoke. box of a boiler with its cente'r'of gravity so placed as'to exert the least possible strain on the boiler, and so arranged as to provideample aecom' modationfor the exhaust and-connecting mechanism and permit free access to the4 ends of the boiler tube's.

Such objects 'I accomplish byLthe means illustratedinV the accompanying drawings, in which drawings like characters of reference indicate likevpartsv throughout the'vie'ws, and in wh ch y f 'Figure 1 is a. longitudinal sectionof a 'superheater Fig'. 2; Fig. 2 is a vvertical transverse section of the same taken on the `line 24-2 of Fig. .1; Fig, 3 is a front elevation of one of the headers of the superheater; Fig. 4 is a. vertical transverse section of oii'eof the'headers of the superheater, taken on the line 4 4 oi Fig. l; and

Fig. 5 is a vertical longitudinal section partly broken away, of o neof the sections oi the superheater, 4taken on the line 5- 5 oFig. 4, f

As illustrated in the drawings, a tubuiarboiler 1'is provided on its'orward end wi-tha smoke box lfvar- :ranged in front of the boiler head 2, which is provided with tubes 3 oi ordinary construction securedat their ends to said head. A dry steam pipe 4 exten ds through he head 2 of th'e boiler, and is provided'with a branching 4 provided with oppositely disposed iiangeslb, as

shown in Fig.V 2. The langesA of the head oi the dry steam pipe are attached to corresponding iianges 5a' formed on the upper ends of the rear headers 5 of the Elong'ated apertures 5" extend through the rear headers, having side walls 51 formed integral with the inner and outer Walls of thefrear headers.`

rlhese/aperturesare arranged betweenvcrtical rows ofsteam pipes 6 having a threaded engagement with' inner walll 7 to which the forward ends of thestcam 50l pipes 6 are secured by means of a threaded connection,

the terminals 6'L oi the steam pipes being turned over against-*the inner wall of the forward header` as also shown in Fig. 5.

The'outer'wall of the forward header 7 is provided Speecation of Letters Patent. Application tiled Septemberl 27,1906. Serial No.. 336,384.'

' ing into the atmosphere.

yl.Patiented 1907.

with correspond-ing `apertures formed yin the header. Thesejapertures so formedarevarra-ngod' inline with the steam pipes of the:'heater so thatfbyfremoving vthe plugsthe pipes maybe detached from the'headers and new pipes inserted -in their-places. -ln order-to dispense with the use oi stay bolts 'between the inner and outer walls of the forward headers, parallel webs 7. are formed'o'n the walls of'saidihcaders `seas to connect said walls together', andlare provided with periorations or openings. 7v oi any suitable formation, which permit a free circulation of steamthroughout the headers. The lowerportiohs of the forward headers are. provided with extensions` or legs 9 which are' mounted upon -thc cylinder saddle 11 .and connected with 'cylinder supply 'pipcs 9b, indicated bydotted linesin Fig. l. in the lower .portion of the extensions 9, having suitable discharge orifices and blow-ol`i valves 10 -connected therewith, and provided with discharge pipeslO open- The .valves 10 are vcontrolled by rods-l0b which extend into-thecab ofthe engine. The forward headers ofthe heaters'are provided with Condensing chambers QfL are -formed lugs or liangcs 71 and 7e adapted to'l be secured to the smoke box ofv the boiler. kv'Al`dr'aft plate '12 extends transversely of the lower portion voki the smokeboX, and its rear portionis supported upon lugs 5c formed onthe lower portion of the rear headers 5, and a vertical draft plate 13 is supported at its lower -end on the horizontal'drait plate l2 and secured to the rear'headers 5 by' means oi lugs 13511 The sections of the heater are spaced apart leaving a central. passage -lway in which is arranged the .exhaust nozzle-14" andl a petticoat pipe 15 whichv extends in line with the stack 16 and 4is securedto the smoke box or'stack by means of hangers 15a. By means of such central passage-way and the removal of. the petticoat pipe and vertical draft plate, free access may be had to the forward end of the boiler tubes so as to enable the boiler tubes to be readily cleaned or repaired.

When the devi'ce is in operation, the steam from the pipe 4 enters the rear headers of the superheater and passes through the steam pipes 6 into the frontA headers 7, and out-oi said headers into the extension 9 and'cylinder supply pipes 9b. When the engine stands still for a while condensation occursin a superheater, .especially if the throttle leaks at fall, which is often the case, and when the engine is started the water oi'condensation necessarily passes through the valves, cylinders, and the exhaust nozzle, and out of the stack. This results'injuriously to an engine for the reason vthat the water inpassing through the. valves-and cylinders washes off the oil, destroys the lubrication, andfdries the walls of the cylinders, which is liable to cause the' cylinders to be cut, andl the pacldngrings of the piston to be broken.l -By the use oi the condensing chamber, however, the engineer enabled to drain the superheater at will. Whenl an .engine is running, moreover, -and the v.boilerprimes or foams, the engineer can dischargethe'ioam through the drain pipes, thereby 'preventing it from going' v through the valves and oylindersfand causing-injury thereby. v o

.Although the constructionv show n .and described herein embodies my invention in its preferred form, I do not desire t be limited to such construction as other means having similar capabilities may be'used" without departing'from my invention. Thus the c onf (lens'ers may be -formed independently-oi the' headers of'the super-heater, and connecteditherewith in any suitable manner, and the rear headers Qi the 'heater may if desired be made withouttheelongated openings 5*?. -I' preferv to provide the headers with such openings and Webs 5, however, to-allow o portiou of the smoke, heat and cinders from the boiler tubes to pass through said openings and around the rear portion of the. steampipes 6, and out through theysteclr,A the balance of the heat going down ,and under the.;

bottom of the tube headers land bottom 'draft plate 12,

and then up between the tubes and out. through thel stack. The webs 5,"moreover, serve as braces to bind the innerv and uter walls of the rear header to- ..s .ther. y

' 'I Having thus described my invention, what' `Ivclaim asnew and desire* to secure by Letters Patent is:

1. A superhenter comprising headers having innerand outer walls forming la steam'chamber,l and steam .pipes connecting the inner walls 9g s aid headers one o't theh'eaders being providedv with paralleieiongated' apertures A-extending through said headers, substantially as shown and described. r 2. 'A superheater comprising similar sections spaced apart, each having headers provided with inner andouter walls forming steamchambers, a plurality of. pipes secured tothe' inn'er walls of said .header s, a condensing .harnbem and an exhaust valve' connected with saidchamber, substantially as shown and described. 3. The combination with n steam bolierprovide'd with a smoke box, of a. cylinder-saddle' connected vwith said boiler,

and a superheater. mounten upon the' cylinder-.saddle within' said smoke'box and comprising two similar sections sepa'- rated'from each other and provided with'headers having inner and outer walls/forming steam chambers, anda pl rality of steam 'pipes .connected with the inner walls" o i' said header-sand with n .plurality of threaded plugs seg, cured-to the outer walls oi! one ofthe headers f eacli sectionfiul l'ine with -said'steam pipes; substantially as al1 f 4.4 A v super-heater comprising similar sections spaced apart, '-adapted,to be arranged on oppositey sides of a petticoat'v pipe, each having headers provided withinner and lo'ut'er end Walls, and-steam pipes connecting the inner @gips l. .'ot saidheaders. A

A superheater comprising similar sections spaced art, and'provded with headers' having inner and outerl .wnlls, .steam pipes connecting the inner` walls :of laid headers and a vertical draft plate between. said s ectignsat- 'the rear end thereof, substantially as shovvn and described.

6. A'super-heater comprising similar sections spliced" the smoke box, and providedwith headers comprising inner and outer end walls, and steam pipes connecting the inner vralis ot's1di-berldcrs, substantially as shown and described.

.'8. The'y omiiination with n boiler, of a smoke boxanda super heater. comprising similar sections spaced .from each other and from 'the lower portion of the smoke box.'nnd

provided with headers .comprising inner and outerend walls, and steam pipes connecting the inher -walls' ot saidl headers, substannily'as shown und described.

9.. A' super-heater adapted to be arranged within a clrcu lar smoke box', und Vconsisting of oppositely disposed -slmllar sections,` provided-with headers having-inner and outer Vwalls forming a steam chamber. and steam pipes connect- 'ing the inner walls ot snidhendcrs, substantially as shown and described.

In testimony whereoi il 1; 1ve signed my nmn'e to this speciiication in the presence. of tivo subscribing witnesses.

- su'n-xeY-.ucxsox Witnesses: 'I

A. E. Bownns, F. M. Boxints: 

